Note 9 - Fair Value of Financial Instruments (Details) - Location of Gain or Loss on Interest Rate Derivatives Designated as Cash Flow Hedges (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Location of Gain or Loss on Interest Rate Derivatives Designated as Cash Flow Hedges [Abstract]    
Amount of (loss) recognized in OCI on derivative   $ (1,383)
Amount of loss reclassified from accumulated OCI into interest 534 883
Amount of loss recognized in income on derivative (ineffective portion and amount excluded from effectiveness testing)   $ (1)